Epidemiology

Pathology

Virology

Bacteriology

Observational and experimental

Qualitative and quantitative

Cross-sectional and longitudinal

Case-control and cohort

A study that compares a group of people with a disease to a group of people without the disease to identify factors that may be associated with the disease.

A study that follows a group of people over time to determine the incidence of a disease.

A study that compares the incidence of a disease in two different populations.

A study that examines the relationship between a disease and a specific exposure.

A study that follows a group of people over time to determine the incidence of a disease.

A study that compares the incidence of a disease in two different populations.

A study that examines the relationship between a disease and a specific exposure.

A study that uses mathematical models to predict the spread of a disease.

The number of new cases of a disease that occur in a population over a specified period of time.

The number of people in a population who have a disease at a given point in time.

The proportion of people in a population who have a disease at a given point in time.

The rate at which a disease spreads through a population.

The number of new cases of a disease that occur in a population over a specified period of time.

The number of people in a population who have a disease at a given point in time.

The proportion of people in a population who have a disease at a given point in time.

The rate at which a disease spreads through a population.

The number of deaths from a disease that occur in a population over a specified period of time.

The number of people in a population who die from a disease at a given point in time.

The proportion of people in a population who die from a disease at a given point in time.

The rate at which a disease kills people.

The proportion of people who die from a disease among those who have the disease.

The number of deaths from a disease that occur in a population over a specified period of time.

The number of people in a population who die from a disease at a given point in time.

The rate at which a disease kills people.

The average number of secondary cases of a disease that are caused by a single primary case.

The number of people in a population who are infected with a disease at a given point in time.

The proportion of people in a population who are infected with a disease at a given point in time.

The rate at which a disease spreads through a population.

The proportion of a population that needs to be immune to a disease in order to prevent an outbreak.

The number of people in a population who are immune to a disease at a given point in time.

The proportion of people in a population who are immune to a disease at a given point in time.

The rate at which a disease spreads through a population.

To prevent the spread of a disease from an infected person to others.

To treat people who are infected with a disease.

To develop a vaccine for a disease.

To conduct research on a disease.

To prevent the spread of a disease from an infected person to others.

To treat people who are infected with a disease.

To develop a vaccine for a disease.

To conduct research on a disease.

To identify people who have been in contact with an infected person.

To treat people who have been in contact with an infected person.

To develop a vaccine for a disease.

To conduct research on a disease.

To prevent people from getting a disease.

To treat people who have a disease.

To develop a vaccine for a disease.

To conduct research on a disease.

To monitor the occurrence of disease in a population.

To identify outbreaks of disease.

To investigate outbreaks of disease.

To control outbreaks of disease.